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For a four noded quadrilateral, we define shape functions on _____

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For a four noded quadrilateral, we define shape functions on _____

(a) X direction

(b) Y direction

(c) Load vector

(d) Master element

The question was posed to me by my school teacher while I was bunking the class.

Query is from Two Dimensional Isoparametric Elements topic in division Two Dimensional Isoparametric Elements and Numerical Integration of Finite Element Method

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The correct option is (d) Master element

For explanation: Master Element (ME) is the main point of reference in our analysis. The ME represents the person itself, and it gives us a primary layer of our personality. To determine the quality of ME, and overall chart, we have to analyze what kind of connection and access ME has to other Elements. The shape function is the function which interpolates the solution between the discrete values obtained at the mesh nodes.

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